Se. Cohen, BIOSOCIAL FACTORS IN EARLY INFANCY AS PREDICTORS OF COMPETENCE IN ADOLESCENTS WHO WERE BORN PREMATURELY, Journal of developmental and behavioral pediatrics, 16(1), 1995, pp. 36-41
In a prospective longitudinal study of a cohort of 105 subjects born p
rematurely, competence was assessed from infancy through late adolesce
nce. A biosocial model guided the research. Neonatal neurobehavioral o
rganization (a composite of term visual attention, amount of time in a
ctive sleep, and 407 EEG pattern) and early social stimulation (the am
ount of talking the mother addressed to the infant during a home obser
vation when the infant was 1 month old) in conjunction with social cla
ss were used to predict competence at key age periods through late ado
lescence. Intellectual competence, school achievement, social competen
ce, and self perception of cognitive competence were studied. The resu
lts indicate that measures taken in the early infancy period were pred
ictive of later competence, particularly intellectual competence, abov
e and beyond social class. Twenty-eight percent of the variance in 18-
year IQ scores was explained by the predictor variables. The study hig
hlights the importance of directing efforts to improve the social envi
ronment of both the infant and the family.